Support for elbv2

[wojtas911]

Hi, Will be that possible to get support for elbv2 http://boto3.readthedocs.io/en/latest/reference/services/elbv2.html#client

I'm not good at python. But I did notice the same on aws-cli on one account i have 3 ELB - one classic and two applications. In AWSCLI $ aws elb describe-load-balancers|jq ".LoadBalancerDescriptions[].LoadBalancerName"|wc -l 1 and I start to searching what is going on here, and the answer is $ aws elbv2 describe-load-balancers|jq ".LoadBalancers[].LoadBalancerArn"|wc -l 2

Please kindly notice that the out put is totally different.

[wawastein]

Hi @wojtas911. I don't have access to AWS account with active ELBv2. I can implement it in "blind" mode in a new branch and instruct you on how to test it and show me actual data. Works for you?

[wojtas911]

Hi @wawastein Thank You for fast replay. As I mention before I'm not good at python at all, but i will try my best to assist You. Maybe that will be good opportunity to learn something new.

I will be happy to help :)

[dartua]

Hi @wojtas911 I've adapted the template for using ELB Application. It was something... but after all it works! Thanks to @wawastein he did a great job, that is way you can monitor a lot in AWS with its help. If you want I can provide you with additional information.

[wawastein]

@dartua could you please do it as a pull-request? If it works for you.

[dartua]

I'm not sure, that is necessary. @wawastein Let me describe you what I did and then you will be able to decide should I create an pull request or not.

1. In order to start working with ELB Application type, you need to know the name of the desirable instance. It differs from classic ELB.

You can find out the name of the instance in two ways:

a) With aws cli: aws elbv2 describe-load-balancers in line "LoadBalancerArn": "arn:aws-cn:elasticloadbalancing:cn-north-1:11111112222333:loadbalancer/app/SomeBalancerName/28bcxxxx8ccb you can find information about the name. In this example the name will be "app/SomeBalancerName/28bcxxxx8ccb"

b) Or you can find the name from WEB GUI in AWS Console. Like this

I didn't create discovery rule for this type of ELB, because I have only a couple of these instances.

2. The another thing, that the metrics also has different names. I created stand-alone template only for monitoring ELB based on @wawastein's template. Here it is: zbx_export_templates (2).xml.zip

[wawastein]

I see. This works, but is "manual", i.e. you need to specify ARN. Poses a problem if environment is fluid and/or there are multiple Ops guys and someone can forget to add new resource. When I have a moment later this week I'll try to write discovery rule.

[ghost]

@dartua i took a look at your template for elbv2 but i cant understand how you are able to get numbers for healthy and unhealthy hosts. elbv2 needs both the load balancer name and the target group name to get this number. i have been unable to get that to work. maybe @wawastein can help us officially support elbv2.

here are two examples with and without target group:

# ./cloudwatch.metric --interval 600 --metric HealthyHostCount --namespace AWS/ApplicationELB --statistic Average --region us-east-1 --dimension LoadBalancer=app/xxx/xxxx --account test-east --debug 1
{u'Datapoints': [], 'ResponseMetadata': {'RetryAttempts': 0, 'HTTPStatusCode': 200, 'RequestId': 'c8b4d04f-18aa-11e8-af4d-6b50fd79ca6c', 'HTTPHeaders': {'x-amzn-requestid': 'c8b4d04f-18aa-11e8-af4d-6b50fd79ca6c', 'date': 'Fri, 23 Feb 2018 15:04:02 GMT', 'content-length': '339', 'content-type': 'text/xml'}}, u'Label': 'HealthyHostCount'}
-1

# ./cloudwatch.metric --interval 600 --metric HealthyHostCount --namespace AWS/ApplicationELB --statistic Average --region us-east-1 --dimension LoadBalancer=app/xxx/xxx,TargetGroup=targetgroup/xxx/xxx --account test-east --debug 1
{u'Datapoints': [{u'Timestamp': datetime.datetime(2018, 2, 23, 14, 53, tzinfo=tzlocal()), u'Average': 1.0, u'Unit': 'Count'}], 'ResponseMetadata': {'RetryAttempts': 0, 'HTTPStatusCode': 200, 'RequestId': 'bac77227-18aa-11e8-9283-2f5cf764a982', 'HTTPHeaders': {'x-amzn-requestid': 'bac77227-18aa-11e8-9283-2f5cf764a982', 'date': 'Fri, 23 Feb 2018 15:03:38 GMT', 'content-length': '497', 'content-type': 'text/xml'}}, u'Label': 'HealthyHostCount'}
1.0

Thanks!

[ghost]

@wawastein nothing with regards to ELBv2 support or a discovery script for this?

[wawastein]

@Doodaz as I said in other issue, I currently don't have access to AWS environment with all these types of resources, I'm working mostly with Google Cloud nowadays. If in the future I get the access I'll probably go back and review this issue, hence not closed.

[diegosainz]

@Doodaz you can checkout PR #16 - post your comments on the same pull request.

[ghost]

Thanks a million @diegosainz will test it out ASAP! 👍

[wawastein]

PR #16 merged - @Doodaz please verify if it works for you and if we can close the issue.